Vol. 170 No. #10
Archive Issues Modal Example

More Stories from the September 2, 2006 issue

  1. Anthropology

    Chimps spread out their tools

    Chimpanzees use stones to crack nuts in an African region far from where that behavior was thought to be relegated.

  2. Astronomy

    Spiral galaxy in the young universe

    Astronomers have identified a galaxy that had already begun to resemble the modern Milky Way when the universe was only 3 billion years old, one-fifth of its current age.

  3. Sperm in frozen animals still viable years later

    Sperm stored inside frozen organs or whole animals can produce healthy offspring years later.

  4. Drug could be depression buster

    Preliminary evidence indicates that a single dose of a drug called ketamine rapidly quells symptoms of major depression for up to 1 week in patients who don't benefit from standard antidepressant medications.

  5. Animals

    Female moths join pheromone choruses

    Female rattlebox moths can detect each other's male-luring pheromones and tend to gather in what may be a scent version of male frogs' chorusing around the pond.

  6. Animals

    How do female lemurs get so tough?

    Female ring-tailed lemurs may get masculinized by well-timed little rises of prenatal hormones.

  7. Is a Galápagos finch caught in a split?

    An inland population of one of the famed Galápagos finches may become a new textbook example of the way in which two species emerge from one while still living together.

  8. Animals

    Flea treatment shows downside of social life

    The flealike parasites that build up in a shared burrow take an unexpectedly large toll on the ground squirrel's reproductive success.

  9. Engineering a Cure: Genetically modified cells fight cancer

    By inserting a gene into normal immune cells isolated from melanoma patients, scientists have turned the cells into cancer fighters.

  10. Tech

    Wheel of Life: Bacteria provide horsepower for tiny motor

    Crawling bacteria can power a micromotor.

  11. Moss Express: Insects and mites tote mosses’ sperm

    A lab test has shown that mosses have their own version animal-courier system for sperm that's similar to pollination.

  12. Earth

    When a Shot Is Not: PCBs may impair vaccine-induced immunity

    Exposure to certain pollutants early in life may do lasting harm to the immune system by blocking its response to vaccinations.

  13. Paleontology

    Frozen rainforest

    Fossils trapped in amber provide evidence that the Amazonian rainforest dates back 10 to 15 million years.

  14. Health & Medicine

    Head to Head: Brain implants are better for Parkinson’s patients

    Parkinson's patients who get electrodes surgically implanted in their brains regain some muscle control and have improved quality of life.

  15. Planetary Science

    Doggone! Pluto gets a planetary demotion

    The solar system has only eight planets, and Pluto isn't one of them, according to the first-ever definition of a planet, approved last week by the General Assembly of the International Astronomical Union.

  16. Katrina’s Two-Sided Impact: Survey finds disorders, resilience after tragedy

    In the year after surviving Hurricane Katrina, Gulf Coast residents experienced a surge in serious mental disorders combined with elements of personal growth and emotional resilience.

  17. Chemistry

    Target Practice

    As they study the biochemical processes that make Mycobacterium tuberculosis tick, researchers are finding new targets to exploit to combat the microbe.

  18. Anthropology

    Mental Leap

    As scientists discover traits shared by human and ape ancestors millions of years ago, they try to fill in the gaps of human evolution.

  19. Humans

    Letters from the September 2, 2006, issue of Science News

    B line “A Vexing Enigma: New insights confront chronic fatigue syndrome” (SN: 7/1/06, p. 10) implies that there’s not an available cure for chronic fatigue syndrome. I was amazed to find no mention of vitamin B12. I can attest to the remarkable effect. Earl L. PyeOak Hills, Calif. Limited evidence suggests that vitamin B12 absorption […]